abend vs abrogate

abend

verb
  • To terminate abnormally. 

noun
  • The abnormal termination of a program. 

  • Termination of a process prior to completion. 

abrogate

verb
  • To put an end to; to do away with. 

  • To block a process or function. 

  • To annul by an authoritative act; to abolish by the authority of the maker or her or his successor; to repeal; — applied to the repeal of laws, decrees, ordinances, the abolition of customs, etc. 

How often have the words abend and abrogate occurred in a corpus of books? (source: Google Ngram Viewer )